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人気のある代数 >

-1/8 x^2+x=0

解

- \frac{1}{8} x^{2} + x = 0

解

x = 0, x = 8

解答ステップ

- \frac{1}{8} x^{2} + x = 0

以下で両辺を乗じる:

8

- x^{2} + 8 x = 0

解くとthe二次式

x_{1, 2} = \frac{- 8 \pm 8 ^{2} - 4 ( - 1 ) \cdot 0}{2 ( - 1 )}

8^{2} - 4 (- 1) \cdot 0 = 8

x_{1, 2} = \frac{- 8 \pm 8}{2 ( - 1 )}

解を分離する

x_{1} = \frac{- 8 + 8}{2 ( - 1 )}, x_{2} = \frac{- 8 - 8}{2 ( - 1 )}

x = \frac{- 8 + 8}{2 ( - 1 )} : 0

x = \frac{- 8 - 8}{2 ( - 1 )} : 8

二次equationの解:

x = 0, x = 8

グラフ

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